Oh man...where did you ever find this??!!
I would kindly ask you to please take as many pics as you can of the FM knife.
I'll give the first tip about this item guys...LOOK..no center pin..hmm
This is extrodinary my friend and I have some research to do and by the same token Phil, I can't express what it would feel and look like in my hand!! Even good close pics don't tell the entire story sometimes. I don't want you to send it to me but some good close shots of the insides and outs would work just fine. I'll give you an idea of what I mean..I'd look for the following..
All blades completely open and to check the walk and talk, and to see enough space was provided to have the blades NOT rub or hit. Then I would inspect the grinding, hefting of the bolster's, how well the ends were done, check the inside frame for finish, check the backs and see how straight they were, the center rivet needs a close look cause lots of fragile handles would crack here if too much stress is applied with the center pin being the last assembly stage...that's just a start..so much to inspect...INSATIABLE CURIOSITY..
I'll be back after some thought...Bob. P CFE..